Apparatus for separating liquids of different gravities.



E. c. KENDALL. APPARATUS FOR SEPAEATING LIQUIDS OF DIFFERENT GRAVITIES.\

R I APPLICATION FILED 0O'I.12, 1911. 1,036,640, Patented Aug. 27, 1912..

2 SHEETS- SHEET 1.

Eiqig l/VVE/VTOR WITNESSES:

, I I BY m E. O. KENDALL APPARATUS FOR SEPARATING LIQUIDS OE DIFFERENTGE AVITIES.

' APPLIUATION FILED 001.12, 1911.

LGSEL 5:63 Patented Aug. 27, 1912. z snmksfimam 2.

i the siphonic pressure :to maintain the same until broken by the un-EDWARD CALVIN KENDALL, or

irrrnn s arps. PATENT oFFioE.

SG'UTI-I NORWALK, coNnEc'ricU'r.

APrARA'rUs FOB. SEPARATING LIQUIDS or DIFFERENT GRAVITIES.

Specification of Letters Patent.

Patented Aug. 27, 1912.

Application filed fictober 12, 1911. Serial No. 654,32

To all whom it may concern:

Be it known that I, EDWARD C. Knxmzm, residing at South Norwalk, in thecounty of Fairfield and State of Connecticut, have invented. a new andImproved Apparatus for Separating-Liquids of 'Difierent Gravities, ofwhichthe following is a specification. I

The invention is a device for separating liquids of different specificgravities and it particularly is intended for use in remov-- mg suchliquids from wide mouth bottles by siphonic action, and the invention isparticularly adapted to the separation of cream ,from milk in milkbottles and the like.

In its generic nature the invention provides a siphon for conveying theliquid out of the bottle, and means whereby upon the insertion of theentrant end of the siphon into the bottle, the siphonic action will beautomatically established, means being also provided for keeping up theflow of liquid, once the same is started, until the siphonic pressure isstopped.

cap that is adapted to fit tightly over the mouth of the bottle. and hasa passage in which a plunger is movable; the plunger carries the 'siphontube, and, in one form of 4,0 invention, it also carries the vent bymeans 1' of which air is admitted into thebottle after has beenestablished,

coverin' of the inlet to the siphon tube. In a mod' ed form the vent isemployed 1n the cap.

The invention further includes those novel details of construction,combination and ar rangement of parts, all of which will be first fullydescribed and then be specifically F pointed out I in the appendedclaims, refer- "ence being had to'the accompanying draw- J-ings; inwhich z- Figure 1 is a perspective view of one form 4J5 of-tneinvention, showing the manner of inserting the plunger to establish thesiphonic pressure. Fig. 2 is a central vertical longitudinal section ofthe device with the parts in a positi n in which the separation takingplace. Fig. 3 is a horizontal sectlon on the lie. 3-3 of Fig.9. F l acentral vertical longitudinal section 7 tion. Fig. .3, is a centralvertical longitudi= nal section of another modificathm.

Ite'lierring now to the accompanying draw:

ings in like numeralsand leases er '25 More specifically the inventionprovides reference'designate like parts in all of the figures, 1represents the bottle in which the milk and cream is contained. \Vhenthe bottle is allowed to remain at rest for sometnne, the milk and creamseparates into two strata the upper, 2 being of lighter specific gravty, and the lower stratum 3, being of heavier specific gravity. Thelower stratum the cream. I

4 designates theplane of separation between thecream 2and the milk 3.

The construction of the receptacle forms per so no part of theinvention.

lily invent-ion resides in the following mechanism, and consists ot-"acap 5 to fit over the mouth of the bottle or container 1. In order toeffect an air tight closure by the cap it is lined with rubber '7 orother suitable substance, and the cap 5 is provided with a central bore12 and-a counter-sunk recess 6.

8 designates a washer ring of rubber or the like, that is held in therecess by bolts 10 and nuts 11. A ring 9 of metal is employed tocooperate with the bolt 10 and its more or less as may be required toeffect an air tight contact between the washer S, the lining 7 and theplunger 14.

l i designates the plunger which is provided with an air tube bore 15and a siphon tube bore 16 extending longitudinally through the plunger.The air tube bore 15 may .be employed itself or an air tube 17 may befitted therein and projected upwardly above the siphon tube 19 to enablethe air duct or vent to be conveniently closed by the finger of theoperator in establishing the siphonic pressure. The siphon tube 19 hasits entrant leg 18 mounted in the bore 16 of the plunger 14, while itsexit leg portion 20 projects down and terminates in a plane below thep'lanc of the mouth 22 of the entrant leg 18. The leg 20 carries anindicator 21, whose lower edge is in the plane of the mouth 22.

In a modified form of the invention, shown in Fig. 4:, the air tube 17may be omitted and the bore 15 may likewise be omitted, provision beingmade for the air entrance by an aerture 23 in the cap 5.

In another mo" ifiedform shown in Fig. 5, an extension tube 24 isconnected to the projecting end at the leg18 of the .siph'on ube as at25,1th'tube 24 being so designed that represents the milk, and the upperstratum,-

nut 11 so as to restrict the passage 13,;

when the parts are in the position shown in Fig. 5, it will terminateclose to the bottom of the bottle 1 so as to siphon out the heavierfluid (milk) first.

In operating the invention, and with particular reference to Fig. 1, theoperator in-;

serts the plunger 1.4 into the passage 12, after placing the cap 5 inposition. During the time of the insertion the air tube ,17 is heldclosed as indicated, and the plunger is pressed in until the lighterfluid flows through the siphon, and until the indicator 21 is restingwith its straight edge in the plane of separation 4. The'operator havingthereby established the siphonic pressure to cause the flow'of fluidthrough the siphon tube 19, removes the finger from the air tube 17 thuspermitting the continued flow of cream-outof the bottle until the mouth-22' of the leg 18 is unsealed by the fluid which is in the bottle, 'atwhich time equilibrium will be restored, and the flow of the lighterfluidout of the bottle will cease.

The same essential operation takes place in the modified f01mS,-W1tl1the exception, in order to stop the flow when the heavier' vention willbe apparent to those skilled in the art. and While the invention hasbeen particularly' described as adapted to the separation of cream andmilln-it' is obvious that it may be usedto separate any fluids ofdifferent specific gravities that will separate themselves into aplurality of strata.

Vhat I claim is 1.- In combination with a fluid container" having amouth, a cap to fit over said mouth, a plunger movable through said capto establish pressure within the container, and a 'siphon'carried bysaid plunger. together with a vent for maintaining the flow in thesiphon.

2. In combination with a fluid container having a mouth, a closure forsaid mouth, a siphon for removing fluid from said container, and meansfor establishing the- 'siphonie flow upon further movement of saidsiphon after the insertionot said siphon into operative position in saidcontainer.

3. In combinationwith a fluid container,

' having a-mouth, a closure for said mouth, a siphon for removingfllllCl from said container, and means :tor carrying said siphon andcooperating with said cap for establishing the siphonic flow upon theinsertion of sai siphon into said container.

havinga mouth, a closure I0 1 saidmouth, a

4. In eombinaltion with a" fluid container plunger, :1 siphon tubecarried bysaid plunger, said closure having a passage to receive saidlunger, means for effecting an' air tight oint between said closure and.

said plunger, whereby pressure in excess of plunger, thereby forcing theliquid out through said siphon tube, and means for.

effecting the continuation of said flow after the movement-of saidplunger has. ceased.

5. In combinationwith a fluid container having a. mouth, a closure for.said mouth, a plunger, :1. siphon tube carried by said-plum ger, saidclosure having a passage toreceive said plunger, means for effecting anair tight joint between said closure and said plunger whereby pressurein excess of atmospheric pressure is established'in said container bythe inward movement of the plunger, thereby forcing the liquid outthrough said siphon tube, and means for effecting the continuation ofsaid flow after the movement of said plunger has ceased, said last namedmeans comprising a vent carried by said plunger andadapted to be closedduring the insertion of the plunger. 6. In combination with a fluid.container having a mouth, a closure ,forsaid mouth, a plunger, a siphontube carried by said plunger, said closure having a passage to receivesaid plunger, means for efiecting an airtight joint between said closureand said plunger whereby pressure in excess of atmospheric pressure isestablished in said container by the inward movement of the plunger,thereby forcing the liquid out through said siphon tube, and means ,foreffecting the continuation of flow after the movement of said plungerhas ceased, and an indicatorcooperative' with the entrant end ofsaid-siphon and adapted to de- 7 termine the position of said siphontube with relation to the plane of separation between the liquids.

7 In a fluid separator, a container having a mouth,-a cap for fittingover said mouth, a resilient lining for said cap to effect an air tightclosure, said cap having a passage, a,

washer having a bore and projecting into said passage, 9. plungeradapted to pass through said passaggand said bore, a siphon tube havingits entrant leg mounted in said plunger, an indicatoron the exit leg .ofsaid siphon tube, and having a straight edge to lie in the plane of themouth of said entrant leg, and means for admitting air into saidcontainer after said plunger has been inserted to establish flow throughsaid siphon tube.

8. In a fluid separator, a container having a; mouth, a cap for fittingover said mouth, a

' sealing lining for said cap, said cap having 1 a passage, a washerhaving a bore and projecting ntosaid passage, :1 plunger adapted is passthrough said passage and said more,

for maintaining the flow in the siphon when siphon tube having itsentrant leg mountestablished by insertion of said plunger.

an 111 and carried. by said phmger,and means 01 applying PI'GSrSUlQ (0said. Washer to '"htn'its Contact with said plunger and iereby effect anair tight connection be Wween said plunger and said cap, and a ventEDWARD CALVIN KENDALL;

Witnesses: MARK W. N gummy", HUGART T.

